| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Wang, Eric Y (17)
|
GUBATS |
50.78 |
53.03 |
2.25 |
| 2 |
Seabolt, Daniel S (18)
|
GUMARC |
53.45 |
53.47 |
0.02 |
| 3 |
Jennings, Samuel P (17)
|
GUBATS |
56.83 |
55.45 |
-1.38 |
| 3 |
Lauth, Andrew L (21)
|
GUMARC |
57.13 |
55.45 |
-1.68 |
| 5 |
Perez, Matthew N (17)
|
GUNOCH |
55.26 |
55.66 |
0.40 |
| 6 |
Gomez Deleon, Jonathan A (17)
|
GUNOCH |
55.95 |
57.04 |
1.09 |
| 7 |
King, Wayne D (17)
|
GUBATS |
54.89 |
59.79 |
4.90 |
| 8 |
Kuykendall, Ryan C (15)
|
GUBATS |
1:03.00 |
1:00.51 |
-2.49 |
| 9 |
Coronel, Ruben I (18)
|
GUNOCH |
59.22 |
1:03.56 |
4.34 |
| 10 |
Armenta, Ethan J (16)
|
GUNOCH |
|
1:07.63 |
- |
| 11 |
Bujnowski, Alexander A (17)
|
GUBATS |
57.46 |
1:07.73 |
10.27 |
| 12 |
Ashby, Matthew C (15)
|
GUNOCH |
1:10.24 |
1:08.06 |
-2.18 |
| 13 |
Dean, Connor M (15)
|
GUNOCH |
1:34.93 |
1:18.97 |
-15.96 |
|
Barnes, Benjamin N (16)
|
GUBATS |
58.61 |
NS |
- |